Perfluorinated tertiary amines
US3933831A · kind A · utility
2Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1973 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Nov 7, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D251/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Thermally and oxidatively stable perfluorinated tertiary amines of the formula: ##EQU1## ARE DISCLOSED, AS WELL AS THE PROCESS FOR MAKING THESE AND OTHER COMPOUNDS. The carbonyl group of imides or amides is reduced with SF.sub.4 using HF as the reaction solvent at a reaction temperature of 25.degree.-300.degree.C. Cyclic imides can be used as starting compounds, and tertiary amines containing unsaturated moieties can be produced. The perfluorinated tertiary amines have various uses in view of their high degree of thermal and oxidative stability, including uses as hydraulic fluids or transformer dielectric fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.